	 .el-header{
	    background-color: #55aaff;
	    color: #333;
	    line-height: 60px;
	  }
	  
	  .el-aside {
	    background-color: #D3DCE6;
	    color: #333;
	    text-align: center;
	     height: 90vh;
	  }
	  
	  .el-main {
	    background-color: #E9EEF3;
	    color: #333;
	    text-align: center;
	    height: 90vh;
	  }